Holddown for lasting-machines.



N. 0. BOHR.

HOLDDOWN FOR LASTING MACHINES. APPLICATION FILED APR.26, 1907. RENEWEDNOV. 22, 1909.

Patented May 17, 1910.

2 SHEETS-SHEET 1.

Z01 in 85583.

N. G. BOHR. EOLDDOWlfI FOR LASTING MACHINES. uruonron FILED APR.26,1907. nnmzwnn ov. 22, 1909.

958,083. Patented May 17,1910.

2 SHEETS-SHEET 2,

4 i "I @Utnesses I Inventor pRyMA -QWWMZ 46 425 46 mahealaa 630m.

UNITED snares Parana neuron.

NICHOLAS C. BOHR, 015' BOSTON, MASSACHUSETTS, ASSIGNOR, BY MESNEASSIGNMENTS, T THOMAS G. PLANT, OF BOSTON, MASSACHUSETTS.

Specification of Iletters Patent.

Patented May it, rain.

- Application filed April 26, 1907, Serial No. 370,360; Renewed Novem er22, 1909;- Serial no. access.

To all whom it may concern:

Be it known that I, NIoHoLAs E0113, :1

' citizen of the United States, residing" at Boston, in the county ofSuffolk, State of Massachusetts, have invented anlmprovement inHolddowns for Lasting-Machines, of which the following'descr'iption, inconnection with the accompanying drawings, is a specification, likecharacters on the drawings representing like parts.

My invention relates to lastin machines of the type known as bed macines and more particularly to hold-down devices for such machines. Inusing'this type of machine the assembled shoe is placed upon a last andthen jacked, sole uppermost,'upon the machine. It is customar to providethe machine with some form 0 hold-down devicezto bear upon the sole atsubstantially the ball thereof and firmly clamp the shoe u'po'n the heeland toe posts to prevent vertithe sole and substantially centrally ofthe will brin its bearing width of the shoe, which point, it is obvious,

will change with difierent sizes or styles of shoes in its relation to afixed part of the machine, as, for instance, the sup art forthe'hold-down. In order to adapt t e holddown to this change of locat onof the proper bearing oint with relation to its support, it has eencustomary heretofore to mount the hold-down u on a single pivot to swingin a horizontal p an'e and so shape or crook it that its range ofmovement over the soles of the (various shoes to he lasted portion, withsome degree 0 approximation, in proper relation to'each. It has beenfound in ractice, however, that the hold-down i confined to movementabout a single fixed center, cannot be shaped so that its bearingportion will rest upon the be lasted.

proper point on ail shoes to The object of this invention is to improvethe construction of hold-down de- To the accomplishment of this objectand such others as may hereinafter appear, as will be readily understoodby those skilled in the art, the invention comprises the features andcombination of parts hereinafter described and claims. V

The various features of my invention will be best understood from adescription of one embodiment thereof, such, for instance, asill-ustrated'in the accompanying drawings, in which,

Figure 1' is a-front elevation of one type of bed lasting machine towhich my hold down has been attached; Fig. 2 is a plan of myhold-downdetached from the machine, the figure being desi ned to illustrate itsrelation to the sole 0 a shoe being lasted; Fig. 3 is a p'lano'fa formof bearing foot pointed out in the appended cooperating with thehold-down, a part beingin section; Fig. 4: is a side elevation of partsshown in Fig. 3'; and, Fig. '5 is a section on the line 55 of Fig. 3.

Referrin to the drawings, ,thelasting machine in connection with which Ihhve chosen to illustrate my improvement comprises the parallel ties 1,which are supported by the legs 2 at thecorr'ect height for the operatorand to these ties is secured at one end a suitable slidew'ay 3, in whichis mountedand moves a support 4, which carries the toe fasting head Tand the support .5 for the toe rest 6. To the oppositegendof theparallel ties 1, there are secured the bars 7, which form a track uponwhich the jacking and heel lasting mechanism is sup orted and on whichtrack it moves to a d rom the toe rest when the machine is operated.

Mounted on the bars 7' is the heel head H,

which directly supports the heel lastingmechanism, including the heelband 8. The jackost i1 is moved toward and from the heel and by means ofa hand wheei 15 and a suitable form of catch is provided to maintain theheel head H in operative position.

The toe head T is mounted for both longitudinal and tateral tippingadjustments. The former adjustment is obtained by means of the handwheel 17, which is secured to the support a and moves the toe head aboutthe pivot pin 18 and the tatteradjustment through ail crank 19, whichoproe adjusted through similar devices.

. 32. Release spring end of which is swive ed, for

erates a worm gear 20'and' through connection with aworm wheel turnsthat portion of the carriage carr ing the lasting devices laterallyabout a ongitudinal pivot pin (not shown). The heel head is similarlyThe longitudinal adjustment occurs through movement of the hand wheel 21turning the head about the pivot 22, and the lateral adjustment occursthrough thecrank 23 turning the lasting devices carried by the headabout a longitudinal pivot (not shown). 'Both the toe and heel heads areprovided with suitable lasting devices in the form of wipers w and w andoperating means therefor.

" Theparts above described are those gener-' ally found in the type ofbed lastin machine known in the art as the 'ldeal lasting machine and donot need further description, since it is a type well known to thoseskilled in the art. 4 I'will now describe the particular features of myinvention, it being understood, of course, that they are adapted for usein any appropriate char cter of lasting machine. At the back of thesupporting frame for the lasting devices there is provided a lug 25,through which passes a hold-down sup porting rod 30, the upper end ofwhich is provided with a collar 31, beneath which and surrounding therod is a coiled spring 32 extendin between said collar and the upper end0 the lug 25. To the lower end of the rod is attached any convenientform of treadle 33 for imparting to the rod vertical movement,depression thereof causing the rod to descend and compress the spring ofthe treadle will allow the 32 to act to raise the rod 30. I j Thehold-down, designated generally by the letter D, is connected to theupper end of the supporting rod 30 and in the form herein illustratedcom' rises an arm 35, one niovement in a horizontal plane, inanyconvenient manner on the supporting rod '30, and to the other end ofwhich there is 'arti'cularly connected, as by a hinged joint 36, asecond arm 37. The freeend of the arm 37 may be shaped to form a bearingfoot of sufficient proportions to roperly hold the shoe in lace when theoot is with the sole, or, it may herein shown, with a separable bearingfoot. Vl ith such a construction the operative is enabled to move thebearing portion of the hold-down universally in a horizontal plane, themovement being obtained, as is obvious, by reason of said bearingportion being mounted for movement about a fixed and a movable fulcrum,the fixed fulcrum herein being the hold-down supporting rod 30, and themovable fulcrum the pin 36 of the hinge 36. Thus, no matter what theposiing rod 30, of the '11 or the toe rest brought into contact beprovided, as

with relation to the hold-down su'p'port' heel pin' of the jack-post ofthe toe'support 5, in supporting any particular size or style of tion,

shoe the operative is enabled 'to position the bearing portion of thehold-down in just the desiredposition upon the sole, that is,

substantially upon the ball thereof and midway the width of the shoe ornearer the toe,

if desired. This wide range of movement is also available in cooperationwith the adjustment of shoes. With any of thehold-downs heretofore inuse, provided with but a single fulcrum point, such complete adjustmentwas impossible, for the down support being stationary, the bearing endof the hold-down could move only in the arc of a circle. If the oldstyle of holddown wereformedto properly rest upon a certain size of shoeand a smaller shoe were then placed in the machine, when the hold-downfoot was placed in bearing position 'upon the new sole it would rest toonear the instep to obtain the best versa if a larger shoe than that towhich the hold-down was originally fitted were to be lasted.

It is extremely important that the pressure point of the bearing footupon the sole be in a particularly selected position with relation tothe shoe as a whole, otherwise the shoe will not be held as firmly as isdesired and the lasting cannot be accomplished so skilfully, hence theappearance ofthe finished shoe will accordingly suffer. Y

The jointed hold-down illustrated, more particularly in lasting Goodyearshoes, permits the use 0 a bearing plateof sufiicient proportions toextend over substantially the entire space within the upturned'channellip A bearing plate of such proportions aids the lasting of the shoe inthat it maintains the channel lips in their proper relation to the soleat the time the wipers w are wiped in in ,the lasting operation.

To enable the jointed hold-down D to be used with.- advantage ahold-down plate, preferably of theform and construction of the plate P(Figs. 3 to 5),-is used. The hold-down plate P is made of two sideplates 42, which are connected together by one or more pins 43 extendingthrough transverse holes 44 in .the two'portions of the plate,

which pins are provided neareach end with a recess or slabbed oifportion 45.

vertically arranged, pins 46 pass from top to bottom of the plates 42,one for each recess 45. The pins 43 are prevented from escape by theprojecting walls 45" outer ends of the recesses 45. Each of the holes'44 is enlarged at its inner end, in meetof the toe head for-varyingstyles reason that the hold-' clamping results, and vice '-at the toeportion of either a leather or a N f Gem insole.

Small,

at the r 958,088 at a ing faces of the plates 4t2, and seated in saidenlargements are the ends ofcoil springs 47,

surrounding the pins 43 and'normally'maintaining the plates 42 in openrelation, as shown in Figs. 3 and 5. The plate P is preferably connectedto the arm 37 by a headed pin 38 extendin loosely through an opening 39in the arm 3? (Fig. 1) to provide flexibility of action or universalrocking,

movement with respect to said arm. The connection, between the plate Pand the supporting pin 38 is by means of a flange 40 on. the lower endof the pin extending at either output of the machine being thereby in--I creased, and because of the employment of with other styles of bearingplates, as will artisan. 'Wll3ll0l1t departin scope of the actualinvention as defined by thejointed hold-down, the efliciency of themachine is also increased. j Obviously, my hold-down may be used bereadily understood by those skilled in the art. j 1 *While theparticulars of construction herein set forth are well suited to oneformof 'the invention, it is not to be understood that these particularsare essential since they ma be variously modified within the skill ofthe from. the true the following claims. 3

What I claim as new is port, a hold-down'arm swiveled thereon to swinhorizontally, a; second arm jointed to the rst arm,-.ja bearingfootcarried by the second arm, andime'ansfor moving said parts avertically in unison.

2.1m a lasting machine, a hold-down device, and a self expanding bearingfoot sustained thereby. I v

3; In'a'lasti'ng machine, the combination of a hold down fs'upportingrod, a holddown arm connected thereto to swing in a horizontal plane, abearing foot adapted to contact with'the sole of-a shoe supported by themachine and mounted for umversal movement on ,said hold-down arm toenable the bearing foot to conform to the surface of theshoe sole, andtreadle operated means for moving the bearing. foot toward and from thesole of the shoe.

4. In a-lasting machine, thecombination ofa hold -down supportingmembena hold- 11. In a lastin down arm jointed thereto to swing in ahorizontal plane, a second arm mounted to swing on the hold-down arm, abearing foot, yielding connections between the second arm and bearingfoot to permit the latter to adapt "itself to the sole of a shoesupported by said machine, yielding means acting nor-' mally to raisethe bearing foot, and treadle operated means for moving said bearingfoot toward the shoe sole.

5. In a lasting machine, the combination of a hold-down sup-portingrod,an arm mounted to swing horizontally thereon, a I

second arm mounted on the first named arm to swing horizontally withrespect thereto, a bearing foot to bear upon the sole of a shoesupportedby said machine, connections between the second arm and bearing footpermitting the latter to adjust itself to the shoe sole, and means forraising and lowering said parts in unison.

6. In a lasting machine, the combination of .a hold-down supportingmember, a

ereby, a plurality of bearing foot having side plates 42 arranged formovement toward and from each other in substantially the plane of thework, and

the jointed hold-down arm D.

8. In a lastin 'machine of the class described, a holdown having .abearing foot shaped to fit within and against the upturned lip on the'soleand to bear upon an extended area of the sole face, a treadle, and

, connections betweenthe treadle and hold- V down "for operating-thelatter from the for- 1. In a lasting machinea hold-down sup-- 3 9. In a"lasting machine of the class de-'.

loosely mounted for universal rocking movef ment in the-free end of saidarm.

10. A holddown' device comprising i a bearing foot havin'g'separableside plates shaped to bear upon the sunface of a shoe sole Within theupturned channel lip and springs mounted in said plates and arra ed tonormally maintain the same in exten ed position. I v

machine of theclass described, the combination of a hold-down supportingmembema swin inghold-down arn;

sustained thereby, hol -down plates con-. 'nect'ed.to said arm, and aspring normally abtmig to separate said plates to cause them to conformto the shape of the shoe sole, and treadle means to force upon the shoesole.

the bearing plates 12 In a lasting machine, the combination In teetimonywhereof, have signefl m of a'hold-down supporting rod, a holdname tothis specification, inthe presence 10 down arm sustained thereby, aplurality of of two subscribing Witnesses.

hold-down plates and connections between said plates and ar1n permittingrocking NICHOLAS BOHBQ movement of each of said plates to sep-Witnesses:

arately conform to the sole of a shoe sup- ROBERT H. KAMM ER,

ported by said machine. ROBERT D. BAXTER.

